Only a handful of collections have hit the runway at Spring 2012 Fashion Week and already, I'm seeing some great day-to-night dresses in a whole new crop of colors I'll soon be obsessing over. Two words: Neon. Pastel. Let's discuss…

This shift dress from Jenni Kayne would be pretty straightforward if it weren't for the thigh-baring, front-facing slits and bright, bubble gum pink color! Wear it for day with flat sandals and shades and for night, with fierce heels and a sexy, cat-eye liner.

Rachel Comey's turquoise and electric blue printed dress is super casual but works for night, I think, thanks to the gathered hemline and sexy black straps. Ladies who don't want to mess with mixing brights and patterns, this one's for you.

This Sachin + Babi gown might seem 100% geared towards night but think of how chic it would look at a summer wedding or garden party with a flat sandal and a great ponytail! And this bright melon color is off the hook, right?

Digging these colors and modern-girl silhouettes? Here are some similar options on shelves right now. Just pop on a pair of black tights when the weather gets cool and you're good-to-go!